Nickel Foam Sheet & Roll (T 0.05-1.6 mm, W 200-300 mm) for Battery, Electrolyzer, and Fuel Cell, CBEFCNFO

Nickel foam is a highly porous, three-dimensional metallic structure (typically 85–98% porosity) that has become a cornerstone material in advanced electrochemical devices. Its unique combination of high electrical conductivity, massive surface area, and mechanical flexibility makes it ideal for energy storage and conversion. 

(1) In Battery application, nickel foam primarily serves as a 3D current collector or a substrate for active materials. Its "sponge-like" architecture provides a much higher surface area than traditional flat foils (like copper or aluminum), allowing for a higher loading of active materials (anode/cathode pastes). It also creates an interconnected conductive network that facilitates fast electron transport, improving rate capability (fast charging/discharging). Moreover, nickel foam is used to host lithium metal, where its 3D structure helps "corral" lithium ions and suppress the growth of dangerous dendrites.

(2) In electrolyzer application, nickel foam acts as the Porous Transport Layer (PTL) or the electrode itself. The open-cell structure allows hydrogen (H2) and oxygen (O2) bubbles to detach quickly from the surface, preventing "gas masking" which can block reactions and increase resistance. It is often used as a skeleton to support catalysts like Nickel-Iron (NiFe) or Cobalt (Co), which are essential for the Oxygen Evolution Reaction (OER) and Hydrogen Evolution Reaction (HER). 

(3) In fuel cell application, nickel foam is increasingly investigated as an alternative to traditional graphite flow fields or carbon paper Gas Diffusion Layers (GDL). It facilitates the uniform distribution of reactant gases (hydrogen and air) across the catalyst layer. One of the biggest challenges in fuel cells is "flooding" (water buildup). Nickel foam's permeability helps wick away byproduct water more efficiently than carbon-based materials.